A full-featured web browser, written entirely in Emacs-Lisp, that
supports all the bells and whistles in use on the web today: frames,
tables, stylesheets, and much more.
Supports asynchronous connections, allowing users to browse numerous
sites concurrently, while others continue to download. Tight
integration with the standard Emacs mail and news reading packages
allows easy sharing of information. Since Emacs is first and foremost
the most powerful editor around, the information you uncover on the
web can immediately be put to work.
Yet another reason to never leave Emacs.
This is the elisp source.